Preliminary. Compact Global Modem Board

Transcription

1 Preliminary XE5620SM February 2003 Compact Global Modem Board Description Xecom s XE5620SM is a complete modem on a compact PCB (daughter board). Xecom includes transferable FCC Part 68 Registration to the user of the XE5620SM. This allows the embedded system designer to easily add modem communications to his process control, remote monitoring, point-of-sale, or remote diagnostic system without additional FCC testing. Xecom s XE5620SM has a twenty percent smaller footprint than other modem daughter board products. This reduced footprint saves board space and allows the design engineer greater flexibility in placement of the modem within the host system. A variation of the XE5620SM, the XE5620SM-F, incorporates Flash memory onto the daughter board. The presence of Flash memory allows future updating of the modem code when features are added. Features * Small Size: by 1.00 by 0.3 * Data transfer at rates from 300 bps to 56 kbps using V.90, V.34bis, V.34, V.32bis, V.32, V.22bis, V.22, V.23, V.21, Bell 212A, and Bell 103 Protocols * Modem Control and Configuration via industry standard AT Commands. * Supports V.42 error correction and V.42bis data compression. * Nonvolatile memory stores modem configuration and permits stored number dialing. * Incorporates Fax send and receive capabilities controlled by Class 1 Fax commands. * Complete integrated DAA. * User Transferrable FCC Part 68 Registration * Complies with telephone networks around the world. * UL60950 Recognition * Low Power operation, 3.3 Volts, 300 milliwatts; XE5620SM/XE5620SM-F BLOCK DIAGRAM NVRAM Reset /TXD /RXD /RTS /DSR /DCD /CTS /DTR /RI Modem Controller ROM or Flash (XE5620SM-F) Analog Front End Global Telephone Line Interface (DAA) Tip Ring SPKR XECOM (1) XE5620SM

2 XE5620SM Mechanical Specifications a l h j k e g d (Top View) b f k j m j n k c Inches Millimeters Dimension Min Typ Max Min Typ Max a b c d e f g h j k l m n Note: All pins are.025 square XECOM (2) XE5620SM

3 XE5620SM Pin Configuration Top View Tip Ring VCC 14 /DCD 13 /CTS 12 /DSR 11 /RTS EXM 3 10 /RXD /Reset 4 9 /TXD SPKR 5 8 /DTR Gnd 6 7 /RI Pin Descriptions PIN NAME DESCRIPTION 1 Tip The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules require a 1500 volt isolation barrier between the telephone line and all other circuits. This isolation must be preserved throughout the system. The telephone company places a DC Battery voltage across Tip and Ring on public switched telephone lines. The XE5620SM operates regardless of the polarity of this Battery voltage. The Battery voltage drives up to 100 milliampere of DC loop current. UL60950 requires minimum creepage and clearances distances between the Tip and Ring traces and all other circuits. Clearance is the shortest distance between conductive circuits; creepage is the distance between conductive points along the surface 2 Ring The Ring and Tip signals connect the modem to the telephone line. FCC Part 68 Rules require a 1500 volt isolation barrier between the telephone line and all other circuits. This isolation must be preserved throughout the system. The telephone company places a DC Battery voltage across Tip and Ring on public switched telephone lines. The XE5620SM operates regardless of the polarity of this Battery voltage. The Battery voltage drives up to 100 milliampere of DC loop current. XECOM (3) XE5620SM

4 XE5620SM Pin Descriptions (continued) PIN NAME DESCRIPTION UL60950 requires minimum creepage and clearances distances between the Tip and Ring traces and all other circuits. Clearance is the shortest distance between conductive circuits; creepage is the distance between conductive points along the surface. 3 EXM EXM will be high when Flash memory is used, XE5620SM-F. Do not attach any signal to this pin. 4 RESET RESET is an active low input which initiates a modem hardware reset. RESET must be active for a minimum of 100 milliseconds for a proper modem reset sequence. No external reset is required; if none is used the RESET signal should be left open. 5 SPKR SPKR allows connection of a speaker to monitor modem operations. SPKR cannot directly drive a speaker; an amplifier with a minimum input impedance of 300 ohms is required. The signal on SPKR is controlled by the ATL and ATM commands. 6 Ground Ground provides the reference voltage for all host interface signals. 7 /RI The /RI signal reports on the presence of an incoming ring signal. When a ring occurs across Tip and Ring, the /RI output goes low and toggles with the cadence of the ring signal.. 8 /DTR /DTR is an active low input to the modem. An active /DTR signals the terminal is available for communications. The AT&D command determines how the modem interprets activity on /DTR. 9 /TXD /TXD provides the path for transmitted data and modem commands to be passed from the host controller to the modem. 10 /RXD /RXD provides the path for received data and modem responses to be sent from the modem to the host controller. 11 /RTS /RTS is an active low input to the modem. When hardware flow control is set, ab active /RTS indicates to the modem that the host has data to send. 12 /DSR /DSR is an active low output from the modem. An active /DSR indicates the modem link is established. The AT&S command controls when the XE5620SM asserts /DSR. 13 /CTS /CTS is an active low output from the modem. When hardware flow control is set, the modem asserts /CTS to indicate that it can accept data from the terminal equipment on /TXD. 14 /DCD /DCD is an active low output from the modem. An active /DCD indicates the presence of a valid carrier signal. The AT&C command controls when the XE5620SM asserts /DCD. 15 VCC VCC provides 3.3 volt power to the modem. XECOM (4) XE5620SM

5 XE5620SM Electrical Specifications Parameter Min Typ Max Units Comments VCC Volts ICC ma On Line ICC 25 ma On-Hook Ring Voltage Detected VRMS Type B Ringer Ring Frequency Detected Hz Type B Ringer Telephone Loop Current ma Line Impedance 600 Ohms Data Transmit level dbm DTMF Transmit Level dbm Avg over 3 second interval Voh 2.4 Volts Vol 0.4 Volts Vih 2.0 VCC+0.3 Volts Vil Volts XE5620SM ABSOLUTE MAXIMUM RATINGS Storage Temperature -25 O C to +85 O C 1 Maximum Operating Temperature Range 0 O C to +70 O C Maximum Time Above Eutectic (183 O C) Preheat Dwell Time 90 seconds 120 to 180 seconds 1 The XE5620SM can be ordered with an Operating Temperature of -40 O C to +85 O C at extra cost. Order XE5620SM-ITR or to specify Industrial Temperature Range (ITR). XECOM (5) XE5620SM

6 XE5620SM Typical Connection Diagram VCC XE5620SM TIP (1) FB1 F1 RJ11 Ring (2) FB2 F2 C1 C2 VCC (15) /DCD (14) /CTS (13) /DSR (12) VCC To Host Serial Port /RTS (11) /RXD (10) /TXD (9) /DTR (8) /RI (7) EXM (3) /RESET (4) SPKR (5) Gnd (6) C3 R U C4 C5 LS1 R2 Parts List for XE5620SM Typical Connection Diagram Reference Reference Designation Qty Description Designation Qty Description C1, C2 2 Cap. 470 pfd 2600V U1 1 National Semi LM386 C3, C4 2 Cap. 0.1 ufd 20% 16V LS1 1 Speaker, 8 Ohms C5 1 Cap. 100 ufd 20% 10V R1 1 Potentiometer, 10K FB1, FB2 2 Ferrite, TDK ACB2012L-120 R2 1 Resistor, 10 Ohms 20 % F1, F2 2 PTC, TR Notes: 1 FB1 and FB2 are ferrite beads which may be required for EMI filtering in your system. Without these components you may experience unintended radiation when the telephone cable is attached. We recommend selecting components such as the TDK ACB2012L-120 which provide a minimum of 100 ohms of impedance at frequencies above 100 MHz. 2. C1 and C2 are high-voltage capacitors which may be required for EMI filtering in your system. Without these components you may experience unintended radiation when the telephone cable is attached to your system. We recommend selecting components such as the Panasonic ECKDRS471. This 470 pfd, 3000 volt capacitor will direct the high frequency harmonics to the system ground. These capacitors must be rated at a minimum of 1500 volts to maintain the isolation required by FCC Part 68 Rules. 3. F1 and F2 are positive thermal coefficient (PTC) devices which protect the modem form excessive current flow. These devices are required for your system to pass UL Fuses may be used in place of the PTC s XECOM (6) XE5620SM

7 Country Selection Xecom has designed the XE5620SM to function in a wide variety of countries throughout the world. Below is a list of the available country configurations. Please contact Xecom if you have questions regarding a country not on this list. Countries Supported: COUNTRY Australia Austria Belgium Czech Republic Denmark Finland France Germany Greece Holland Iceland India Ireland Italy Japan AT COMMAND AT*NC40 AT*NC1 AT*NC2 AT*NC19 AT*NC3 AT*NC4 AT*NC5 AT*NC6 AT*NC17 AT*NC10 AT*NC28 AT*NC18 AT*NC7 AT*NC8 AT*NC43 COUNTRY Lichtenstein Luxembourg Namibia Norway Poland Portugal Russia South Africa Spain Sweden Switzerland Taiwan United Kingdom United States AT COMMAND AT*NC29 AT*NC9 AT*NC26 AT*NC11 AT*NC24 AT*NC12 AT*NC25 AT*NC27 AT*NC13 AT*NC14 AT*NC15 AT*NC20 AT*NC16 AT*NC22 NOTE: Country regulations permit Xecom to offer transferrable registration only in the United States, FCC Part 68 only. All other required certifications of systems using the XE5620SM are the responsibility of Xecom s customer. Xecom will assist our customers with any of these certifications. XECOM (7) XE5620SM

8 XE5620SM AT Commands The XE5620SM uses "AT" commands for configuration and control. This section describes the AT command format and lists the AT commands, Registers and Result codes. XE5620SM "AT" commands have two operational modes; Command Mode, Data Mode and FAX mode. Data Mode: The XE5620SM enters data mode after it connects to a remote modem and issues the appropriate result code. In the Data Mode the modem sends all data presented on Transmit Data (/TXD) to the remote modem and puts data from the remote modem onto Received Data (/RXD). When the modem exits data mode, it issues a "NO CARRIER" result code. Command Mode: The XE5620SM enters command mode on power-up, reset, a lost connection, or receipt of the escape code. In command mode the modem accepts commands from the host on transmit data. Appropriate result codes are returned on received data. Fax Mode: The XE5620SM enters Class 1 fax mode on receipt of AT+FCLASS=1. In fax mode commands and responses are issued at 19,200 bits per second; the character format is 8 bits no parity. The modem accepts fax commands only in fax mode. The A/, ATO, AT&T and escape commands are not valid in fax mode. Command Line Format Command lines issued to the modem follow a strict format. Each command begins with the prefix AT. The command buffer stores the command line and executes it upon receipt of a carriage return. Until executed, the command line can be edited with the backspace key. Command Prefix - Each command, except the A/ command, begins with the AT prefix. The "A" and "T" may be both upper case or both lower case but cannot be of different cases. The prefix identifies the speed and parity of the commands sent to the modem. The modem determines data rate by measuring the width of the incoming bits. Parity is determined by comparing the parity bits of the "A" and the "T." Command Line - Commands may be strung together in a single command line of up to 36 characters. Commands are executed in the sequence they appear. Spaces may be inserted into the command line but do not fill space in the command buffer. A carriage return terminates the command line and causes the commands to be executed. Register S3 allows the user to select a character other than a carriage return to terminate the command line. Command Buffer - The Command Buffer holds a maximum of 36 characters, including the AT prefix. If the command buffer overflows, the modem issues an "ERROR" result code and commands are not executed. Command Line Editing - The backspace edits a command line before it is executed. The backspace key, (Control and H simultaneously on some systems), erases the previous character in the command line. Register S5 allows the user to select a character other than a backspace to edit the command line. Re-Execute Last Command - The A/ command causes the modem to re-execute the last command line. This is the only command which does not require the "AT" prefix. Omitted Parameters - Most commands include a parameter which determines how the functions will be set. When the command parameter is omitted from the command string, it is assumed to be a 0. Escape Characters - A 3 character escape sequence may be entered to switch the modem into command mode while on line. The escape character, set by Register S2, must be entered 3 times in succession to execute the escape. An AT command must then be entered within the period defined by S12 to enter command mode. The default escape sequence is "+++." Result Codes - The modem issues a result code after each action. Result codes may be sent as full words, one or two digit numeric codes, or may be disabled all together. Each result code ends with a carriage return when numeric result codes are chosen. When full word result codes are chosen, a Line Feed and Carriage Return precede and follow each result code. XECOM (8) XE5620SM

9 XE5620SM AT Commands An asterisk indicates the factory default A - Answer Command - Bn - Select Communications Standard n=0 Selects CCITT standards * n=1 Selects Bell standards D - Dial Command - 0-9, A-D, #, * = Dialing Digits P = Pulse dial T = Tone dial W = Wait for dial tone, = Pause for the duration of = Wait for silence! = Switch hook flash ; = Return to the command state ^ = Enable Calling Tone S=n = Dial Stored Number n En - Command Echo n=0 Do not echo commands n=1 Enable command echo* Hn - Switch Hook Control - n=0 Switch hook relay opens n=1 Switch hook relay closes In - Modem Identification Ln - Speaker Volume - n=0 Speaker volume low n=1 Speaker volume low n=2 Speaker volume medium * n=3 Speaker volume high. Mn - Speaker Activity - n=0 Speaker off n=1 Speaker on until carrier received* n=2 Speaker remains on n=3 Speaker on after dialing until DCD detected. Nn - Modulation Selection n=0 Communication Rate set by AT*I Command n=1 Automatic Negotiation of Data Rate beginning at AT*I Setting. * On - On Line n=0 Return On Line with no retrain* n=1 Initiate retrain while returning On line. n=2 Initiate rate renegotiation while returning On line. Qn - Responses n=0 Send responses * n=1 No Responses Sr? - Interrogate Register - Sr=n - Set Register Value - Vn - Result Codes - n=0 Numeric Result Codes n=1 English Word Result Codes* Wn - CONNECT Result Code - n=0 Display CONNECT DCE Speed n=1 Display CONNECT DTE Speed n=2 Display CONNECT DCE Speed plus error control extension * n=3 Display CONNECT DTE Speed plus error control extension Xn - Result Code Set - n=0 Responses 0-4 n=1 Responses 0-5 & 10 n=2 Responses 0-6 & 10 n=3 Responses 0-5, 7 & 10 n=4 Responses 0-7 & 10* Zn - Reset - n=0 Reset and Recall Profile 0 * n=1 Reset and Recall Profile 1 &Cn - DCD Operation n=0 DCD is forced active n=1 DCD indicates a valid carrier signal * &Dn - DTR n=0 DTR is ignored n=1 When the modem is on-line DTR off switches it to the command mode and issues OK response. n=2 Modem disconnects if the host revokes DTR.* n=3 The modem performs a soft reset when DTR is revoked. &F - Reset Factory Defaults &Gn - Guard Timer - n=0 None * n=1 550 Hz Guard Timer n= Hz Guard Timer XECOM (9) XE5620SM

10 XE5620SM AT Commands &Kn - Flow Control n=3 RTS/CTS Flow Control * n=4 XON/XOFF Flow Control &Pn - Pulse Dial Make/Break Ratio n=0 39%/61% 10 PPS * n=1 33%/67% 10 PPS n=2 39%/61% 20 PPS n=3 33%/67% 20 PPS &Rn - Clear to Send n=0 Clear to Send follows Request to Send n=1 Clear to Send Active * &Sn - Data Set Ready n=0 Data Set Ready Forced Active * n=1 Data Set Ready on at Start of Modem handshake &Un - Protocol Selection n=0 V.90 * n=1 V.34Bis/V.34 n=2 V.32bis/V.22bis n=3 Bell 103 n=4 V.21 n=5 V.23 &V - View Active Configuration &Wn - Store Current Configuration n=0 Store Active Configuration in Profile 0 * n=1 Store Active Configuration in Profile 1 &Yn - Select Configuration to Recall n=0 Recall Configuration Profile 0 * n=1 Recall Configuration Profile 1 &Zn=x - Store dialing string x %Cn - Data Compression Control n=0 No Data Compression n=1 Data Compression Enabled * \Nn - Error Control Mode n=0 Normal Mode n=1 Direct Mode n=2 MNP Required n=3 MNP or Normal n=4 Auto Error Correction V.42 without ODP or ADP Phase Detection, MNP or Normal mode n=5 Auto Reliable Mode * n=6 V.42 without ODP or ADP Phase Detection required n=7 V.42 with ODP or ADP Phase Detection required \Vn - Protocol Result Code n=0 No Protocol Result code added to Response * n=1 Protocol Result code added to Response *Hn - Automatic Retrain n=0 Automatic Retrain Disabled n=1 Automatically retrain on poor signal quality *In - Select Maximum Connection Speed n= bps, n= bps, 28,000 with AT&U=0 n= bps, 29,333 with AT&U=0 n= bps, 30,666 with AT&U=0 n= bps, 32,000 with AT&U=0 n=5 12,000 bps, 33,333 with AT&U=0 n=6 14,400 bps, 34,666 with AT&U=0 n=7 16,800 bps, 36,000 with AT&U=0 n=8 19,200 bps, 37,333 with AT&U=0 n=9 21,600 bps, 38,666 with AT&U=0 n=10 24,000 bps, 40,000 with AT&U=0 n=11 26,400 bps, 41,333 with AT&U=0 n=12 28,800 bps, 42,666 with AT&U=0 n=13 31,200 bps, 44,000 with AT&U=0 n=14 33,600 bps *, 45,333 with AT&U=0 n=15 46,666 bps with AT&U=0 n=16 48,000 bps with AT&U=0 n=17 49,333 bps with AT&U=0 n=18 50,666 bps with AT&U=0 n=19 52,000 bps with AT&U=0 n=20 53,333 bps with AT&U=0 n=21 54,666 bps with AT&U=0 n=22 56,000 bps with AT&U=0 * XECOM (10) XE5620SM

11 XE5620SM AT Commands *NCn - Country Configuration n=1 Austria n=2 Belgium n=3 Denmark n=4 Finland n=5 France n=6 Germany n=7 Ireland n=8 Italy n=9 Luxembourg n=10 Holland n=11 Norway n=12 Portugal n=13 Spain n=14 Sweden n=15 Switzerland n=16 United Kingdom n=17 Greece n=18 India n=19 Czech Republic n=20 Taiwan n=21 reserved n=22 United States n=23 reserved n=24 Poland n=25 Russia n=26 Namibia n=27 South Africa n=28 Iceland n=29 Liechtenstein n=30 reserved n=31 reserved n=32 reserved n=33 reserved n=34 reserved n=35 reserved n=36 reserved n=37 reserved n=38 reserved n=39 reserved n=40 Australia *On - Transmit Level Selection (Note: This feature is not available in all country configurations.) n=0-11 dbm (default) n=1-12 dbm n=2-13 dbm n=3-14 dbm n=4-15 dbm n=5-16 dbm n=6-17 dbm n=7-18 dbm n=8-19 dbm n=9-20 dbm n=10-21 dbm n=11-22 dbm n=12-23 dbm n=13-24 dbm n=14-25 dbm n=15-26 dbm XECOM (11) XE5620SM

12 XE5620SM AT Class 1 FAX Commands AT+FCLASS? - Service Class Indication 0 = Configured as a data modem 1 = Configured for Service Class 1. AT+FCLASS=? - Service Class Capability 0 = Configured as a data modem 1 = Configured for Service Class 1. AT+FCLASS=n - Set Service Class 0 = Configured as a data modem 1 = Configured for Service Class 1. AT+FAE=n - Data/Fax Auto Answer 0 = Answer as a fax modem only 1 = Either a fax or data modem AT+FLO - Flow Control 0 = Flow Control Off 1 = XON/XOFF Flow Control Selected 2 = RTS/CTS Flow Control Selected * AT+FRH<mod> - Receive HDLC Data 3 V.21 Channel 2, 300 bps 24 V.27ter, 2400 bps 48 V.27ter, 4800 bps 72 V.29, 7200 bps 96 V.29, 9600 bps 97 V.17, 9600 bps 98 V.17 short train, 9600 bps 121 V.17, 12,000 bps 122 V.17 short train, 12,000 bps 145 V.17, 14,400 bps 146 V.17 short train, 14,400 bps AT+FRM<mod> - Receive Fax (see AT+FRH for "mod" values) AT+FRS<time> - Receive Silence AT+FRTn - Receive Test Data AT+FTH<mod> - Transmit HDLC Data (see AT+FRH for "mod" values) AT+FTM<mod> - Transmit Fax (see AT+FRH for "mod" values) AT+FTS<time> - Transmit Silence AT+FTTn - Transmit Test Data XECOM (12) XE5620SM

13 XE5620SM Modem Registers S0 S1 S2 S3 S4 S5 S6 Answer on nth Ring: S0 sets the modem to automatically answer on the nth ring. Setting S0 to 0 disables automatic answer. Range: 0 to 255 Units Rings Default 0 Ring Count: S1 is a read-only register showing the number of rings detected. If a ring is not detected within 8 seconds, S1 is reset to zero. Range: 0 to 255 Units Rings Default 0 Escape Character: S2 determines the ASCII escape character. Values of select valid characters; values from 128 to 255 disable the escape sequence. Range: 0 to 255 Units ASCII Character Default 43 (+) Line Termination Character: S3 determines the ASCII character which will terminate commands and modem responses. Range: 0 to 127 Units ASCII Character Default 13 (Carriage Return) Line Feed Character: S4 sets the ASCII character to act as a line feed character in modem responses. Range: 0 to 127 Units ASCII Character Default 10 (Line Feed) Backspace Character: S5 defines the ASCII character used as a backspace to edit the command line. Range: 0 to 127 Units ASCII Character Default 8 (Back Space) Dial Tone Wait Time: S6 determines how long the modem waits for dial tone before dialing. The Dial Tone Wait Time cannot be set to less than two seconds. Range: 3 to 7 Units Seconds Default 6 S7 S8 S9 S10 S11 S12 S13 Wait for Carrier after Dialing: S7 determines how long the modem waits for a valid carrier signal after dialing. Range: 1 to 255 Units Seconds Default 60 Comma Pause Time: S8 defines the duration of the pause initiated by a comma in the dialing string. The pause is generally used when waiting for a second dial tone. Range: 1 to 255 Units Seconds Default 2 Carrier Detect Response Time: S9 establishes the length of time the remote modem's carrier must be present to be recognized as valid. Range: 1 to 255 Units 0.1 Seconds Default 6 Carrier Off Disconnect Delay: S10 selects how long carrier must be lost before the modem disconnects. Note: If S10 is smaller than the value of S9 or S10 is set to 255, the modem will not automatically disconnect on loss of carrier. Range: 1 to 255 Units 0.1 Seconds Default 14 Tone Dialing Speed: S11 sets the duration and spacing of the dialing tones. S11 does not affect the pulse dialing. Range: 50 to 255 Units 1 Millisecond Default 95 Escape Code Guard Timer: S12 sets the escape sequence guard timer. If characters are received before or after the escape sequence, within the guard timer, the modem aborts the escape attempt and remains in data mode. Range: 0 to 255 Units 0.02 Seconds Default 50 Pulse Dialing : S13 permits pulse dialing to be disabled Register Setting Function 0 No Pulse Dialing 1 Pulse Dialing Allowed XECOM (13) XE5620SM

14 XE5620SM Modem Registers (continued) S14 S21 S22 Bit-mapped Register: S14 stores the values of Several AT Commands. Bit Function 0 Echo (ATE0) 1 Reserved 2 Result Codes (ATQ0) 3 Numeric Responses (ATV0) 4,5 Pulse Dialing Parameters (AT&P0) Bit-mapped Register: S21 stores the values of Several AT Commands. Bit Function 0-2 Reserved 3,4 DTR Condition (AT&D) 5 DCD Function (AT&C) 6 DSR Function (AT&S) 7 Reserved Bit-mapped Register: S22 stores the values of Several AT Commands. Bit Function 0-3 Speaker Control (ATL/ATM) 4,5,6 Response Set (ATX) 7 Reserved S95 S97 S98 Bit-mapped Register: S95 stores the modem s result code and modulation information. Bit Function 0, 1, 2 Result Code Selection 3 Modulation Selection 4-7 Reserved Bit-mapped Register: S97 stores the modem s error control and data compression information. Bit Function 0-2 Error Correction Selection 3-6 Reserved 7 Data Compression Selection Bit-mapped Register: S98 stores the automatic retrain and Flow control status. Bit Function 0, 1 Error Correction Selection 2, 3 Reserved 4-6 Flow Control Selection 7 Reserved S23 Bit-mapped Register: S23 stores the modem s active data format. Bit Function 0, 1,2,3 DTE Rate BPS 4,5 Parity 6,7 Reserved S30 Inactivity Timer: S30 determines how long the modem will remain on line with not data flowing. A 0 in this register disables the inactivity time out. Range: Units Minutes Default 0 XECOM (14) XE5620SM

15 XE5620SM Modem Responses Digits Verbose Description 0 OK Command Successful 1 CONNECT 300 bps connection 2 RING Ring signal detected 3 NO CARRIER Carrier not detected 4 ERROr Error in command line 5 CONNECT BPS Connection 6 NO DIAL TONE No dial tone detected 7 BUSY Busy signal detected 8 NO ANSWER No 5 sec. silence detected 9 CONNECT bps Connection 10 CONNECT bps Connection 11 CONNECT bps Connection 12 CONNECT bps Connection 13 CONNECT bps Connection 14 CONNECT ,000 bps Connection 15 CONNECT ,800 bps Connection 16 CONNECT ,200 bps Connection 17 CONNECT ,600 bps Connection 20 CONNECT ,400 bps Connection 21 CONNECT ,000 bps Connection 22 CONNECT ,400 bps Connection 23 CONNECT ,600 BPS Connection 24 CONNECT ,200 BPS Connection Digits Verbose Description 30 CONNECT ,400 bps Connection 31 CONNECT ,800 bps Connection 32 CONNECT ,200 bps Connection 33 CONNECT ,600 bps Connection 34 CONNECT V.90 28,000 bps Connection 35 CONNECT V.90 29,333 bps Connection 36 CONNECT V.90 30,666 bps Connection 37 CONNECT V.90 32,000 bps Connection 38 CONNECT V.90 33,333 bps Connection 39 CONNECT V.90 34,666 bps Connection 40 CONNECT V.90 36,000 bps Connection 41 CONNECT V.90 37,333 bps Connection 42 CONNECT V.90 38,666 bps Connection 43 CONNECT V.90 40,000 bps Connection 44 CONNECT V.90 41,333 bps Connection 45 CONNECT V.90 42,666 bps Connection 46 CONNECT V.90 44,000 bps Connection 47 CONNECT V.90 45,333 bps Connection 48 CONNECT V.90 46,666 bps Connection 49 CONNECT V.90 48,000 bps Connection 50 CONNECT V.90 49,333 bps Connection 51 CONNECT V.90 50,666 bps Connection 52 CONNECT V.90 52,000 bps Connection 25CONNECT1200TX/75RX V.23 Connection 1200 bps Transmit 75 bps Receive 53 CONNECT V.90 53,333 bps Connection 54 CONNECT V.90 54,666 bps Connection 26CONNECT75TX/1200RX V.23 Connection 75 bps Transmit 1200 bps Receive 55 CONNECT V.90 56,000 bps Connection 28 CONNECT BELL 300 Bell 300 bps Connection 29 CONNECT V21 V bps Connection XECOM (15) XE5620SM

16 FCC Instructions The XE5620SM complies with part 68 of the FCC Rules and Regulations. With each device shipped, there is a label which contains, among other information, the FCC Registration Number and Ringer Equivalence Number (REN) for this product. You must, upon request, provide this information to your telephone company. The mounting of this device in the final assembly must be made in such a manner as to preserve the high voltage protection between the TIP/RING Connection and the rest of the system. Typically, this may be accomplished by maintaining a minimum spacing 100 mils between the TIP/RING Traces to the RJ-11C Jack and low voltage portion of the system. No additional circuitry may be attached between TIP/RING and the telephone line connection, unless specifically allowed in the rules. The REN is useful to determine the quantity of devices you may connect to a telephone line and still have all of these devices ring when the number is called. In most, but not all areas, the sum of the RENs of all devices connected to one line should not exceed five (5.0). To be certain of the number of devices you may connect to the line, as determined by the REN, you should contact the local telephone company to determine the maximum REN for you calling area. If your system causes harm to the telephone network, the telephone company may discontinue service temporarily. If possible, they will notify you in advance. If advance notification is not practical, you will be notified as soon as possible. Your telephone company may make changes in its facilities, equipment, operations or procedures that could affect proper functioning of your equipment. If they do, you will be notified in advance to give you an opportunity to maintain uninterrupted telephone service. If you experience trouble with this device, please contact XECOM at (408) for information on obtaining service or repairs. The telephone company may ask you to disconnect this device from the network until the problem has been corrected or until you are sure that the device is not malfunctioning. The device may not be used on coin service lines provided by the telephone company (this does not apply to private coin telephone applications which use standard telephone lines). Connection to party lines is subject to state tariffs. XECOM (16) XE5620SM

17 Terms of Sale Devices sold by XECOM are covered by the warranty provisions appearing in its Terms of Sale only. XECOM makes no warranty, express, statutory, implied, or by description regarding the information set forth herein, or regarding the freedom of the described devices from patent infringement. XECOM makes no warranty of merchantability or fitness for any purposes. XECOM reserves the right to discontinue production and change specifications and prices at any time and without notice. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment, are specifically not recommended without additional processing and authorization by XECOM for such application. Xecom assumes no responsibility for the use of any circuitry other than circuitry embodied in a Xecom product. No other circuits, patents, or licenses are implied. Life Support Policy Xecom's products are not authorized for use as Critical Components in Life Support Devices or Systems. Life Support Devices or Systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, and whose failure to perform, when properly used in accordance with instructions provided in the labeling, can be reasonably expected to result in significant injury to the user. A Critical Component is any component of a life support device or system whose failure to perform can be reasonably expected to cause failure of the life support device or system, or to affect its safety or effectiveness. Copyright, Xecom 2003 While Xecom, Inc. has made every effort to ensure that the information presented here is accurate, Xecom will not be liable for any damages arising from errors or omission of fact. Xecom reserves the right to modify specifications and/or prices without notice. Product mentioned herein are used for identification purposes only and may be trademarks and/or registered trademarks of their respective companies. Xecom Incorporated 374 Turquoise Street, Milpitas, CA Ph: Fax: info@xecom.com XECOM (17) XE5620SM